JP7026828B2 - 2,3-ジヒドロフロ[2,3-b]ピリジン化合物 - Google Patents
2,3-ジヒドロフロ[2,3-b]ピリジン化合物 Download PDFInfo
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- JP7026828B2 JP7026828B2 JP2020571376A JP2020571376A JP7026828B2 JP 7026828 B2 JP7026828 B2 JP 7026828B2 JP 2020571376 A JP2020571376 A JP 2020571376A JP 2020571376 A JP2020571376 A JP 2020571376A JP 7026828 B2 JP7026828 B2 JP 7026828B2
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- dihydroflo
- pharmaceutically acceptable
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- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 title claims description 28
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- 238000010561 standard procedure Methods 0.000 description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 2
- UTYXJYFJPBYDKY-UHFFFAOYSA-N tetrapotassium;iron(2+);hexacyanide;trihydrate Chemical compound O.O.O.[K+].[K+].[K+].[K+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] UTYXJYFJPBYDKY-UHFFFAOYSA-N 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- GKASDNZWUGIAMG-UHFFFAOYSA-N triethyl orthoformate Chemical compound CCOC(OCC)OCC GKASDNZWUGIAMG-UHFFFAOYSA-N 0.000 description 2
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 2
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- 241000701447 unidentified baculovirus Species 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- PPAIMZHKIXDJRN-FMDGEEDCSA-N (3ar,5r,6s,7r,7ar)-2-(ethylamino)-5-(hydroxymethyl)-5,6,7,7a-tetrahydro-3ah-pyrano[3,2-d][1,3]thiazole-6,7-diol Chemical compound S1C(NCC)=N[C@H]2[C@@H]1O[C@H](CO)[C@@H](O)[C@@H]2O PPAIMZHKIXDJRN-FMDGEEDCSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- JWOHBPPVVDQMKB-UHFFFAOYSA-N 1-[(2-methylpropan-2-yl)oxycarbonyl]piperidine-4-carboxylic acid Chemical compound CC(C)(C)OC(=O)N1CCC(C(O)=O)CC1 JWOHBPPVVDQMKB-UHFFFAOYSA-N 0.000 description 1
- LTMRRSWNXVJMBA-UHFFFAOYSA-N 2,2-diethylpropanedioic acid Chemical compound CCC(CC)(C(O)=O)C(O)=O LTMRRSWNXVJMBA-UHFFFAOYSA-N 0.000 description 1
- OJINISLICGANNQ-UHFFFAOYSA-N 2,3,3a,4-tetrahydro-1,2-benzoxazole Chemical compound C1=CCC2CNOC2=C1 OJINISLICGANNQ-UHFFFAOYSA-N 0.000 description 1
- MRAYNLYCQPAZJN-BQYQJAHWSA-N 2-[(e)-2-ethoxyethenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane Chemical compound CCO\C=C\B1OC(C)(C)C(C)(C)O1 MRAYNLYCQPAZJN-BQYQJAHWSA-N 0.000 description 1
- FMYBFLOWKQRBST-UHFFFAOYSA-N 2-[bis(carboxymethyl)amino]acetic acid;nickel Chemical compound [Ni].OC(=O)CN(CC(O)=O)CC(O)=O FMYBFLOWKQRBST-UHFFFAOYSA-N 0.000 description 1
- BTANRVKWQNVYAZ-UHFFFAOYSA-N 2-butanol Substances CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 1
- CCZWSTFVHJPCEM-UHFFFAOYSA-N 2-iodopyridine Chemical compound IC1=CC=CC=N1 CCZWSTFVHJPCEM-UHFFFAOYSA-N 0.000 description 1
- ZMSIFDIKIXVLDF-UHFFFAOYSA-N 2-methyl-1,3,4-oxadiazole Chemical compound CC1=NN=CO1 ZMSIFDIKIXVLDF-UHFFFAOYSA-N 0.000 description 1
- JHUUPUMBZGWODW-UHFFFAOYSA-N 3,6-dihydro-1,2-dioxine Chemical compound C1OOCC=C1 JHUUPUMBZGWODW-UHFFFAOYSA-N 0.000 description 1
- LDFBXJODFADZBN-UHFFFAOYSA-L 3-diphenylphosphanylpropyl(diphenyl)phosphane;palladium(2+);dichloride Chemical compound Cl[Pd]Cl.C=1C=CC=CC=1P(C=1C=CC=CC=1)CCCP(C=1C=CC=CC=1)C1=CC=CC=C1 LDFBXJODFADZBN-UHFFFAOYSA-L 0.000 description 1
- DPZYLEIWHTWHCU-UHFFFAOYSA-N 3-ethenylpyridine Chemical compound C=CC1=CC=CN=C1 DPZYLEIWHTWHCU-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 0 CC(c1c(*)cc(CCO2)c2n1)N(CC1)CCC1C1=NN=C(C)*1 Chemical compound CC(c1c(*)cc(CCO2)c2n1)N(CC1)CCC1C1=NN=C(C)*1 0.000 description 1
- 101001120790 Caenorhabditis elegans UDP-N-acetylglucosamine-peptide N-acetylglucosaminyltransferase Proteins 0.000 description 1
- 101800004637 Communis Proteins 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 101710115937 Microtubule-associated protein tau Proteins 0.000 description 1
- 241001460678 Napo <wasp> Species 0.000 description 1
- 229940126137 O-GlcNAcase inhibitor Drugs 0.000 description 1
- 229940124158 Protease/peptidase inhibitor Drugs 0.000 description 1
- 235000010586 Sophora japonica Nutrition 0.000 description 1
- 244000046101 Sophora japonica Species 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- OFLXLNCGODUUOT-UHFFFAOYSA-N acetohydrazide Chemical compound C\C(O)=N\N OFLXLNCGODUUOT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000001348 alkyl chlorides Chemical class 0.000 description 1
- VREFGVBLTWBCJP-UHFFFAOYSA-N alprazolam Chemical compound C12=CC(Cl)=CC=C2N2C(C)=NN=C2CN=C1C1=CC=CC=C1 VREFGVBLTWBCJP-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000006254 arylation reaction Methods 0.000 description 1
- 239000012131 assay buffer Substances 0.000 description 1
- 238000002820 assay format Methods 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- UWTDFICHZKXYAC-UHFFFAOYSA-N boron;oxolane Chemical compound [B].C1CCOC1 UWTDFICHZKXYAC-UHFFFAOYSA-N 0.000 description 1
- 229940098773 bovine serum albumin Drugs 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 150000005829 chemical entities Chemical class 0.000 description 1
- 238000010568 chiral column chromatography Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000007398 colorimetric assay Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000001086 cytosolic effect Effects 0.000 description 1
- 238000006900 dealkylation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- WMKGGPCROCCUDY-PHEQNACWSA-N dibenzylideneacetone Chemical compound C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 WMKGGPCROCCUDY-PHEQNACWSA-N 0.000 description 1
- 208000037765 diseases and disorders Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 231100000673 dose–response relationship Toxicity 0.000 description 1
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- FCZCIXQGZOUIDN-UHFFFAOYSA-N ethyl 2-diethoxyphosphinothioyloxyacetate Chemical compound CCOC(=O)COP(=S)(OCC)OCC FCZCIXQGZOUIDN-UHFFFAOYSA-N 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006951 hyperphosphorylation Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 238000003402 intramolecular cyclocondensation reaction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002483 medication Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000002161 motor neuron Anatomy 0.000 description 1
- DAZXVJBJRMWXJP-UHFFFAOYSA-N n,n-dimethylethylamine Chemical compound CCN(C)C DAZXVJBJRMWXJP-UHFFFAOYSA-N 0.000 description 1
- 210000002241 neurite Anatomy 0.000 description 1
- 230000006764 neuronal dysfunction Effects 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000012038 nucleophile Substances 0.000 description 1
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000001979 organolithium group Chemical group 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000137 peptide hydrolase inhibitor Substances 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920002704 polyhistidine Polymers 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000010956 selective crystallization Methods 0.000 description 1
- 239000012321 sodium triacetoxyborohydride Substances 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- DJWUNCQRNNEAKC-UHFFFAOYSA-L zinc acetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O DJWUNCQRNNEAKC-UHFFFAOYSA-L 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/04—Ortho-condensed systems
- C07D491/044—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring
- C07D491/048—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/12—Rolling load or rolling pressure; roll force
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Neurosurgery (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Hospice & Palliative Care (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Psychiatry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
(-)-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3-b]ピリジン、
(+)-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3-b]ピリジン、
(-)-5-フルオロ-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3 -b]ピリジン、および
(+)-5-フルオロ-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3-b]ピリジン、
ならびにその薬学的に許容される塩を含む。
下記の調製物および実施例は、本発明をさらに例示し、本発明の化合物の典型的な合成を表す。試薬および出発材料は、当業者によって容易に入手可能であるか、または容易に合成され得る。調製物および実施例は、限定ではなく例示として示され、当業者により種々の変更が行われ得ることを理解されたい。
スキーム1のステップG:スターラおよび空気凝縮器を備えた1つ口丸底フラスコに、窒素下で、2,6-ジクロロ-3-[(E)-2-エトキシビニル]ピリジン(748mg、3.4mmol)を加え、アセトン(17.1mL)およびHClの2M水溶液(8.6mL)に加える。得られた混合物を、60℃に加熱し、3.5時間撹拌する。得られた混合物を室温に冷却し、EtOAcで希釈し、飽和NaHCO3水溶液でクエンチする。得られた水性混合物をEtOAcで3回抽出し、合わせた有機抽出物をMgSO4で乾燥させ、濾過し、濾液を減圧下で濃縮する。得られた残留物をMeOH(8.6mL)およびTHF(4.9mL)に溶解し、NaBH4(195mg)を5分かけて少しずつ加える。反応混合物を室温で40分間撹拌し、水でクエンチし、EtOAcで3回抽出し、合わせた有機抽出物を飽和NaCl水溶液で洗浄し、MgSO4で乾燥させ、濾過し、濾液を減圧下で濃縮する。得られた残留物を、シクロヘキサン中のEtOAcを0~60%の勾配で溶出させる、シリカゲルでのフラッシュクロマトグラフィによって精製して、所望のクロマトグラフィ画分の溶媒蒸発後、表題化合物を取得する(315mg、47%収率)。ES/MS m/z: 193 (M+H).
スキーム1のステップE:フラスコに、2,6-ジクロロ-3-ビニル-ピリジン(3g、17.5mmol)およびTHF(1.5mL)を室温で加えた。混合物を氷水浴中で撹拌し、THF中の9-ボラビシクロ[3.3.1]ノナンの0.5M溶液(49.1mL)を2分かけて滴下する。反応混合物を45℃の加熱ブロック内で2時間撹拌する。反応混合物を氷水浴中で撹拌し、2NのNaOH水溶液(26.3mL)を5分かけて滴下し、続いて35%のH2O2水溶液(4.87mL)を2分かけて滴下し、得られた反応混合物を室温で2時間撹拌する。反応混合物を水で希釈し、EtOAcで3回抽出し、合わせた有機抽出物を飽和Na2S2O3-5H2O水溶液で洗浄し、Na2SO4で乾燥させ、減圧下で濃縮する。得られた残留物を、0~50%EtOAc/シクロヘキサンで溶出させる、シリカゲルでのフラッシュクロマトグラフィによって精製して、所望のクロマトグラフィ画分の溶媒蒸発後に、表題化合物を取得する(1.8g、55%収率)。ES/MS m/z: 193 (M+H).
スキーム2のステップC:フラスコにTHF(4.7mL)中の2,3-ジヒドロフロ[2,3-b]ピリジン-6-カルボニトリル(349mg、2.4mmol)を加える。Et2O(1.5mL)中の臭化メチルマグネシウムの3Mの溶液を0℃で添加し、得られた反応混合物を2時間撹拌する。混合物を飽和NH4Cl水溶液でクエンチし、20分間撹拌する。混合物をEtOAcで3回抽出し、合わせた有機抽出物を飽和NaCl水溶液で洗浄し、MgSO4で乾燥させ、濾過し、濾液を減圧下で濃縮する。得られた残留物を、シクロヘキサン中のEtOAcを0~40%の勾配で溶出させる、シリカゲルでのフラッシュクロマトグラフィによって精製して、所望のクロマトグラフィ画分の溶媒蒸発後、表題化合物を取得する(339mg、87%収率)。ES/MS m/z: 164 (M+H).
スキーム2のステップH:CHCl3(5.2mL)中の1-(2,3-ジヒドロフロ[2,3-b]ピリジン-6-イル)エタノン(100mg、0.6mmol)および2-メチル-5-(4-ピペリジル)-1,3,4-オキサジアゾール(200mg、1.2mmol)の撹拌された溶液に、チタン(IV)イソプロポキシド(363μL、1.2mmol)を加え、反応混合物を30分間撹拌する。NaBH(OAc)3(390mg、1.8mmol)を加え、反応物を40℃で一晩撹拌する。反応混合物をEtOAc(5mL)および飽和NaHCO3水溶液(2mL)で20分間希釈し、混合物を珪藻土のベッドを通して濾過し、濾液を減圧下で濃縮する。得られた残留物を、ACN中のpH約9.0の10mMのNH4HCO3水溶液の混合物で溶出させる(4分間の勾配時間で20%~40%、流速25mL/分)、C18シリカゲルの逆相クロマトグラフィ(XBridge C18、5μm19×100mm、214nmおよび300nm、MS-ESI100~800)により精製し、CO2中18%IPA/0.2%DMEAで溶出させる、SCFキラルクロマトグラフィ(CHIRALPAK(登録商標)AD-Hカラム、250×30mm、5μm、カラム温度35℃、流速120mL/分)によってさらに精製して、所望のクロマトグラフィ画分の溶媒蒸発後、表題化合物を取得する(27mg、55%収率)。tR=0.096分、>99%ee(Amy1キラルカラム、3.3×150mm、流速1.5mL/分、82%CO2中の18%IPA/0.2%IPAm、カラム温度35℃、287nM)。ES/MS m/z: 315 (M+H).
本明細書で上記のように使用される場合、実施例3の「(+)」または「(+)エナンチオマー」という用語は、MeOH中の記載された濃度「c」(g/100mL)を有する20℃および589nmで時計回り(または「(+)」)の光学回転を有する実施例3のエナンチオマーを指す。
実施例2に記載されたのと同じ分析HPLC条件下で、tR=2.0分。[α]D 20=+107.3°(c=0.20、DCM)
OGA酵素の生成
全長ヒトO-GlcNAc-β-N-アセチルグルコサミニダーゼ(NM_012215)をコードするヌクレオチド配列を、N末端ポリヒスチジン(HIS)タグと共にpFastBac1(Invitrogen)ベクターに挿入する。バキュロウイルス生成を、Bac-to-Bac Bacurovirus Expression系(Invitrogen)プロトコルに従って行う。Sf9細胞に、培養物のリットル当たり10mLのP1ウイルスを使用して1.5×106細胞/mLを感染させ、28℃で48時間インキュベートする。細胞を遠心沈降させ、PBSですすぎ、ペレットを-80℃で保存する。
上記OGAタンパク質(His-OGA)を、次のように精製する。4Lの細胞を、50mMのTris、pH8.0、300mMのNaCl、10%のグリセロール、10mMのイミダゾール、1mMのジチオトレイトール(DTT)、0.1%のTriton(商標)X-100、4錠のプロテアーゼ阻害剤(完全EDTA非含有、Roche)を含有する200mLの緩衝液中で、4℃で45分間溶解する。次いで、この細胞溶解物を4℃、16,500rpmで40分間遠心沈降させ、上清を6mLのNi-NTA樹脂(ニッケル-ニトリロ三酢酸)と共に4℃で2時間インキュベートする。
OGA酵素は、核細胞質タンパク質からのO-GlcNAcの除去を触媒する。この活性を測定するために、Fluoresceinジ-N-アセチル-β-N-アセチル-D-グルコサミニド(FD-GlcNAc,Kim,Eun Ju;Kang,Dae Ook;Love,Dona C.;Hanover,John A.Carbohydrate Research(2006),341(8),971-982)を(384ウェルアッセイ形式における)6.7μMの最終濃度で基質として使用する。この蛍光発生基質は、OGAによる切断の際に蛍光性となるので、酵素活性は、535nm(485nmでの励起)で検出される蛍光の増大によって測定することができる。
Claims (13)
- 前記化合物が、(-)-5-フルオロ-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3-b]ピリジンである、請求項1に記載の化合物、またはその薬学的に許容される塩。
- (-)-5-フルオロ-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3-b]ピリジンである、請求項2に記載の化合物。
- 前記化合物が、(+)-5-フルオロ-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3-b]ピリジンである、請求項1に記載の化合物、またはその薬学的に許容される塩。
- (+)-5-フルオロ-6-[1-[4-(5-メチル-1,3,4-オキサジアゾール-2-イル)-1-ピペリジル]エチル]-2,3-ジヒドロフロ[2,3-b]ピリジンである、請求項4に記載の化合物。
- 請求項1~5のいずれか1項に記載の化合物、またはその薬学的に許容される塩を含む、アルツハイマー病の患者を治療するための薬学的組成物。
- 請求項1~5のいずれか1項に記載の化合物、またはその薬学的に許容される塩を含む、患者における軽度認知障害の、アルツハイマー病への進行を予防するための薬学的組成物。
- 請求項1~5のいずれか1項に記載の化合物、またはその薬学的に許容される塩を含む、進行性核上性麻痺の患者を治療するための薬学的組成物。
- 請求項1~5のいずれか1項に記載の化合物またはその薬学的に許容される塩を、1種以上の薬学的に許容される担体、希釈剤、または賦形剤と共に含む、薬学的組成物。
- 請求項1~5のいずれか1項に記載の化合物またはその薬学的に許容される塩を、1種以上の薬学的に許容される担体、希釈剤、または賦形剤と混合することを含む、薬学的組成物を調製するためのプロセス。
- アルツハイマー病の治療のための医薬の製造のための、請求項1~5のいずれか1項に記載の化合物、またはその薬学的に許容される塩の使用。
- 軽度認知障害の、アルツハイマー病への進行を予防するための医薬の製造のための、請求項1~5のいずれか1項に記載の化合物、またはその薬学的に許容される塩の使用。
- 進行性核上性麻痺の治療のための医薬の製造のための、請求項1~5のいずれか1項に記載の化合物、またはその薬学的に許容される塩の使用。
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